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Michal Orzel
7ac12e3634
Introduce a command line parameter "maxcpus" on Arm to allow adjusting the number of CPUs to activate. Currently the limit is defined by the config option CONFIG_NR_CPUS. Such parameter already exists on x86. Define a parameter "maxcpus" and a corresponding static variable max_cpus in Arm smpboot.c. Modify function smp_get_max_cpus to take max_cpus as a limit and to return proper unsigned int instead of int. Take the opportunity to remove redundant variable cpus from start_xen function and to directly assign the return value from smp_get_max_cpus to nr_cpu_ids (global variable in Xen used to store the number of CPUs actually activated). Signed-off-by: Michal Orzel <michal.orzel@arm.com> Reviewed-by: Bertrand Marquis <bertrand.marquis@arm.com>
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